Rekensommen met eraf tot 100

Erafsommen
1.
60
–
20
=
2.
65
–
5
=
3.
70
–
70
=
4.
40
–
15
=
5.
40
–
15
=
6.
85
–
85
=
7.
75
–
20
=
8.
85
–
55
=
9.
50
–
35
=
10.
60
–
60
=
11.
75
–
55
=
12.
30
–
0
=
13.
30
–
10
=
14.
65
–
45
=
15.
45
–
20
=
16.
15
–
0
=
17.
25
–
15
=
18.
75
–
40
=
19.
95
–
95
=
20.
45
–
15
=
21.
55
–
55
=
22.
10
–
0
=
23.
80
–
70
=
24.
35
–
15
=
25.
10
–
5
=
26.
60
–
25
=
27.
70
–
40
=
28.
20
–
15
=
29.
40
–
30
=
30.
80
–
30
=
31.
35
–
25
=
32.
5
–
5
=
33.
5
–
5
=
34.
90
–
35
=
35.
30
–
5
=
36.
40
–
30
=
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
60
–
20
=
40
2.
65
–
5
=
60
3.
70
–
70
=
0
4.
40
–
15
=
25
5.
40
–
15
=
25
6.
85
–
85
=
0
7.
75
–
20
=
55
8.
85
–
55
=
30
9.
50
–
35
=
15
10.
60
–
60
=
0
11.
75
–
55
=
20
12.
30
–
0
=
30
13.
30
–
10
=
20
14.
65
–
45
=
20
15.
45
–
20
=
25
16.
15
–
0
=
15
17.
25
–
15
=
10
18.
75
–
40
=
35
19.
95
–
95
=
0
20.
45
–
15
=
30
21.
55
–
55
=
0
22.
10
–
0
=
10
23.
80
–
70
=
10
24.
35
–
15
=
20
25.
10
–
5
=
5
26.
60
–
25
=
35
27.
70
–
40
=
30
28.
20
–
15
=
5
29.
40
–
30
=
10
30.
80
–
30
=
50
31.
35
–
25
=
10
32.
5
–
5
=
0
33.
5
–
5
=
0
34.
90
–
35
=
55
35.
30
–
5
=
25
36.
40
–
30
=
10
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen